Expansion and contraction rates between dental materials and tooth structure caused by temperature change vary.Gaps at the margins allow fluids to enter the space.This is known as:

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Quizplus · Accepted Answer

The phenomenon of fluids entering the space due to different rates of expansion and contraction between dental materials and tooth structure is known as percolation. Coefficient of thermal expansion and thermal conductivity are physical properties of materials, while dimensional change is a general term that refers to any change in the size or shape of an object.

Expansion and Contraction Rates Between Dental Materials and Tooth Structure